/* ----------------------------------------------------
   BABY KEYBOARD & PLAY - GENTLE SENSORY SPACE STYLING
---------------------------------------------------- */

/* --- Clean Modern Reset --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    user-select: none; /* Prevent babies from long-press selecting text */
    -webkit-user-select: none;
    -webkit-touch-callout: none; /* Prevent iOS callouts */
    -webkit-tap-highlight-color: transparent; /* Disable tap highlight */
}

/* --- Theme Variables --- */
:root {
    /* Fonts */
    --font-primary: 'Quicksand', system-ui, -apple-system, sans-serif;
    --font-headers: 'Outfit', system-ui, -apple-system, sans-serif;

    /* Transition Speeds */
    --transition-smooth: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), opacity 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), background-color 0.4s ease, color 0.4s ease, border-color 0.4s ease;
    --transition-bounce: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275), background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* --- Themes Mapping --- */
body.theme-warm-sand {
    --bg-gradient-start: #f6efe6;
    --bg-gradient-end: #e8dbcb;
    --text-primary: #5c5246;
    --text-secondary: #8c7e6e;
    --accent: #d4a373;
    --panel-bg: rgba(255, 255, 255, 0.65);
    --panel-border: rgba(255, 255, 255, 0.4);
    --chip-inactive-bg: rgba(212, 163, 115, 0.1);
    --chip-active-bg: #d4a373;
    --chip-active-text: #ffffff;
    --shadow-color: rgba(92, 82, 70, 0.08);
}

body.theme-soft-sage {
    --bg-gradient-start: #eaf1eb;
    --bg-gradient-end: #cfdfd2;
    --text-primary: #3d4f41;
    --text-secondary: #657e6b;
    --accent: #7ca982;
    --panel-bg: rgba(255, 255, 255, 0.65);
    --panel-border: rgba(255, 255, 255, 0.45);
    --chip-inactive-bg: rgba(124, 169, 130, 0.12);
    --chip-active-bg: #7ca982;
    --chip-active-text: #ffffff;
    --shadow-color: rgba(61, 79, 65, 0.08);
}

body.theme-lavender-mist {
    --bg-gradient-start: #f0ebf5;
    --bg-gradient-end: #dad0e4;
    --text-primary: #4a3e56;
    --text-secondary: #746484;
    --accent: #9d81ba;
    --panel-bg: rgba(255, 255, 255, 0.65);
    --panel-border: rgba(255, 255, 255, 0.4);
    --chip-inactive-bg: rgba(157, 129, 186, 0.12);
    --chip-active-bg: #9d81ba;
    --chip-active-text: #ffffff;
    --shadow-color: rgba(74, 62, 86, 0.08);
}

body.theme-ocean-breeze {
    --bg-gradient-start: #e9f0f5;
    --bg-gradient-end: #cfdbed;
    --text-primary: #32475c;
    --text-secondary: #5a7591;
    --accent: #6b9ac4;
    --panel-bg: rgba(255, 255, 255, 0.65);
    --panel-border: rgba(255, 255, 255, 0.4);
    --chip-inactive-bg: rgba(107, 154, 196, 0.12);
    --chip-active-bg: #6b9ac4;
    --chip-active-text: #ffffff;
    --shadow-color: rgba(50, 71, 92, 0.08);
}

body.theme-deep-night {
    --bg-gradient-start: #1c222e;
    --bg-gradient-end: #10141c;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --accent: #f59e0b;
    --panel-bg: rgba(20, 26, 38, 0.65);
    --panel-border: rgba(255, 255, 255, 0.08);
    --chip-inactive-bg: rgba(245, 158, 11, 0.12);
    --chip-active-bg: #f59e0b;
    --chip-active-text: #10141c;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

/* --- Layout & Background --- */
body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
    position: relative;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    transition: var(--transition-smooth);
    animation: pageFadeIn 0.8s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

@keyframes pageFadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

canvas {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* --- Introductory / Helper Overlay --- */
.intro-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    background: transparent;
    pointer-events: none; /* Let clicks pass to canvas */
    z-index: 2;
    transition: opacity 1.5s ease;
    width: 90%;
    max-width: 500px;
}

.intro-message h1 {
    font-family: var(--font-headers);
    font-size: 2.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
    opacity: 0.85;
}

.intro-message p {
    font-size: 1rem;
    margin-bottom: 2rem;
    opacity: 0.7;
    font-weight: 500;
}

.intro-prompt {
    font-size: 1.1rem;
    font-weight: 600;
    padding: 0.8rem 1.6rem;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 50px;
    display: inline-block;
    box-shadow: 0 8px 32px var(--shadow-color);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    animation: pulseGentle 3s infinite ease-in-out;
    opacity: 0.9;
}

.parent-hint {
    margin-top: 1.5rem;
    font-size: 0.75rem;
    opacity: 0.55;
    font-style: italic;
}

/* --- Floating Parent Settings Button --- */
.settings-trigger {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 50px;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 16px var(--shadow-color);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: var(--transition-bounce);
    overflow: hidden;
}

.settings-trigger:hover {
    transform: scale(1.04);
}

.settings-trigger:active {
    transform: scale(0.96);
}

.settings-trigger .gear-icon {
    opacity: 0.75;
    transition: transform 1.2s ease;
}

.settings-trigger:hover .gear-icon {
    transform: rotate(60deg);
}

.settings-trigger .hold-text {
    font-size: 0.7rem;
    opacity: 0.6;
    margin-left: 2px;
    font-weight: 400;
}

/* Hold indicator overlay */
.settings-trigger .progress-ring {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 4px;
    background: var(--accent);
    width: 0%;
    transition: width 0.1s linear;
    box-shadow: 0 -2px 10px var(--accent);
}

/* --- Settings Drawer & Panel --- */
.settings-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 100;
    display: flex;
    justify-content: flex-end;
    align-items: stretch;
    transition: opacity 0.3s ease;
}

.settings-drawer.hidden {
    opacity: 0;
    pointer-events: none;
}

.drawer-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition: opacity 0.3s ease;
    z-index: 1;
}

.drawer-content {
    position: relative;
    width: 100%;
    max-width: 440px;
    background: var(--panel-bg);
    border-left: 1px solid var(--panel-border);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    z-index: 2;
    transform: translateX(0);
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    padding: 30px;
}

.settings-drawer.hidden .drawer-content {
    transform: translateX(100%);
}

.drawer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.drawer-header h2 {
    font-family: var(--font-headers);
    font-size: 1.4rem;
    font-weight: 600;
    opacity: 0.9;
}

.close-btn {
    border: none;
    background: var(--chip-inactive-bg);
    color: var(--text-primary);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: 1.4rem;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: var(--transition-bounce);
}

.close-btn:hover {
    background: var(--accent);
    color: white;
    transform: scale(1.1);
}

.drawer-body {
    flex: 1;
    overflow-y: auto;
    padding-right: 8px; /* For scrollbar gap */
}

/* Custom Scrollbar for Drawer settings */
.drawer-body::-webkit-scrollbar {
    width: 4px;
}
.drawer-body::-webkit-scrollbar-track {
    background: transparent;
}
.drawer-body::-webkit-scrollbar-thumb {
    background: var(--panel-border);
    border-radius: 10px;
}

.settings-group {
    margin-bottom: 2rem;
    border-bottom: 1.5px solid var(--panel-border);
    padding-bottom: 1.8rem;
}

.settings-group:last-child {
    border-bottom: none;
}

.settings-group h3 {
    font-family: var(--font-headers);
    font-size: 0.88rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Chips / Option buttons */
.chips-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.chip {
    font-family: var(--font-primary);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid transparent;
    background: var(--chip-inactive-bg);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-bounce);
}

.chip:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px var(--shadow-color);
}

.chip.active {
    background: var(--chip-active-bg);
    color: var(--chip-active-text);
    box-shadow: 0 4px 12px var(--shadow-color);
}

/* Theme circles */
.theme-picker {
    display: flex;
    gap: 12px;
}

.theme-circle {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    transition: var(--transition-bounce);
}

.theme-circle:hover {
    transform: scale(1.12);
}

.theme-circle.active {
    border-color: var(--text-primary);
    transform: scale(1.08);
}

.theme-circle.active::after {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-primary);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Sliders */
.control-row {
    margin-bottom: 1.4rem;
}

.control-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    opacity: 0.85;
}

.control-label span:last-child {
    font-size: 0.8rem;
    opacity: 0.6;
}

.slider {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 10px;
    background: var(--chip-inactive-bg);
    outline: none;
    transition: background 0.3s;
    border: 1px solid var(--panel-border);
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    box-shadow: 0 2px 8px var(--shadow-color);
    transition: var(--transition-bounce);
    border: 2px solid white;
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.slider::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border: 2px solid white;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    box-shadow: 0 2px 8px var(--shadow-color);
    transition: var(--transition-bounce);
}

.slider::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 4px 12px var(--shadow-color);
}

/* Action Button */
.settings-actions {
    display: flex;
    justify-content: stretch;
}

.action-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.9rem;
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    background: var(--panel-bg);
    color: var(--text-primary);
    cursor: pointer;
    box-shadow: 0 4px 10px var(--shadow-color);
    transition: var(--transition-bounce);
}

.action-btn:hover {
    background: var(--chip-inactive-bg);
    transform: translateY(-1px);
}

/* Drawer Footer */
.drawer-footer {
    margin-top: 1.5rem;
    font-size: 0.75rem;
    opacity: 0.55;
    text-align: center;
    line-height: 1.4;
    border-top: 1.5px solid var(--panel-border);
    padding-top: 1.2rem;
}

/* --- Page / Canvas Animations --- */
@keyframes pulseGentle {
    0%, 100% {
        transform: scale(1);
        opacity: 0.85;
    }
    50% {
        transform: scale(1.03);
        opacity: 0.98;
    }
}

/* --- Timer Section --- */
.timer-status {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.9rem;
    min-height: 28px;
}

#timerStatusLabel {
    font-size: 0.88rem;
    font-weight: 600;
    opacity: 0.75;
    transition: all 0.3s ease;
}

#timerStatusLabel.running {
    color: var(--accent);
    opacity: 1;
}

.timer-cancel-btn {
    background: rgba(239, 68, 68, 0.12);
    color: #ef4444;
    font-size: 0.78rem;
    padding: 5px 12px;
    border-radius: 20px;
}

.timer-cancel-btn:hover {
    background: #ef4444;
    color: white;
    transform: none;
}

.timer-custom-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
}

.timer-custom-input {
    flex: 1;
    padding: 8px 14px;
    border-radius: 20px;
    border: 1.5px solid var(--panel-border);
    background: var(--panel-bg);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.85rem;
    font-weight: 600;
    outline: none;
    /* allow typing, override global user-select:none for this field */
    user-select: text;
    -webkit-user-select: text;
    transition: border-color 0.2s;
}

.timer-custom-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

.timer-custom-input:focus {
    border-color: var(--accent);
}

/* --- Countdown Badge (overlay on canvas) --- */
.countdown-badge {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9;
    padding: 8px 16px;
    background: var(--panel-bg);
    border: 1.5px solid var(--panel-border);
    border-radius: 50px;
    font-family: 'Outfit', system-ui, sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 14px var(--shadow-color);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}

.countdown-badge.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
}

.countdown-badge.warning {
    color: #f59e0b;
    border-color: rgba(245, 158, 11, 0.35);
    animation: timerWarning 1s ease-in-out infinite;
}

@keyframes timerWarning {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.04); }
}

/* --- Playtime Over Lockout Overlay --- */
.timesup-overlay {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 12, 18, 0.65);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: opacity 0.6s ease;
}

.timesup-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.timesup-box {
    max-width: 380px;
    width: 88%;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 28px;
    padding: 40px 36px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.18);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    animation: popIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) both;
}

@keyframes popIn {
    from { transform: scale(0.7); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.timesup-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: floatIcon 3s ease-in-out infinite;
}

@keyframes floatIcon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.timesup-box h2 {
    font-family: 'Outfit', system-ui, sans-serif;
    font-size: 1.7rem;
    font-weight: 600;
    margin-bottom: 0.7rem;
    color: var(--text-primary);
}

.timesup-box p {
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--text-secondary);
    margin-bottom: 1.8rem;
    font-weight: 500;
}

.timesup-unlock-btn {
    font-family: 'Outfit', system-ui, sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: 50px;
    border: none;
    background: var(--chip-active-bg);
    color: var(--chip-active-text);
    cursor: pointer;
    box-shadow: 0 6px 20px var(--shadow-color);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.timesup-unlock-btn:hover {
    transform: scale(1.06);
    box-shadow: 0 10px 24px var(--shadow-color);
}

/* --- Landing Menu Styles --- */
body.menu-page {
    overflow-y: auto; /* Allow scrolling if grid overflows small screens */
    overflow-x: hidden;
    height: auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 40px 20px;
    box-sizing: border-box;
}

.decorative-blob {
    position: absolute;
    border-radius: 50%;
    z-index: 0;
    pointer-events: none;
    animation: drift 25s ease-in-out infinite alternate;
    will-change: transform;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(212, 163, 115, 0.18) 0%, rgba(212, 163, 115, 0) 70%);
    top: -100px;
    left: -100px;
}

.blob-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(124, 169, 130, 0.18) 0%, rgba(124, 169, 130, 0) 70%);
    bottom: -150px;
    right: -150px;
    animation-delay: -5s;
}

.blob-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(157, 129, 186, 0.18) 0%, rgba(157, 129, 186, 0) 70%);
    top: 40%;
    left: 60%;
    animation-delay: -10s;
}

@keyframes drift {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(40px, 60px) scale(1.2); }
}

.menu-container {
    max-width: 1000px;
    width: 100%;
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 32px;
    margin: 0 auto;
}

.menu-header {
    text-align: center;
}

.logo-text {
    font-family: var(--font-headers);
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.menu-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.activity-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 24px;
}

@media (max-width: 850px) {
    .activity-grid {
        grid-template-columns: 1fr;
    }
}

.activity-card {
    text-decoration: none;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 28px;
    padding: 32px;
    display: flex;
    gap: 24px;
    align-items: center;
    box-shadow: 0 10px 30px var(--shadow-color);
    transition: var(--transition-bounce);
    position: relative;
    overflow: hidden;
}

.activity-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 20px 40px var(--shadow-color);
    border-color: var(--accent);
}

.card-icon {
    font-size: 3.5rem;
    background: rgba(255, 255, 255, 0.4);
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 22px;
    flex-shrink: 0;
    box-shadow: inset 0 2px 5px rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(255,255,255,0.2);
    transition: var(--transition-bounce);
}

.activity-card:hover .card-icon {
    transform: rotate(6deg) scale(1.1);
}

.card-body {
    display: flex;
    flex-direction: column;
    gap: 6px;
    text-align: left;
}

.card-body h2 {
    font-family: var(--font-headers);
    font-size: 1.45rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body p {
    font-size: 0.95rem;
    line-height: 1.45;
    color: var(--text-secondary);
    font-weight: 500;
}

.card-tag {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--accent);
    opacity: 0.8;
}

.menu-footer {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    opacity: 0.75;
}

/* --- Shared Navigation Button Styles --- */
.action-btn.menu-btn {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid var(--panel-border);
    color: var(--text-primary);
}

.action-btn.menu-btn:hover {
    background: var(--accent);
    color: var(--chip-active-text);
}

/* --- Learning Game Layouts & UI --- */

/* Giant Center Display for Alphabets/Numbers */
.game-container {
    height: 100vh;
    width: 100vw;
    position: relative;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.game-header {
    padding: 20px 30px;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(to bottom, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0) 100%);
    pointer-events: none;
}

.game-header * {
    pointer-events: auto; /* enable buttons click */
}

.game-title {
    font-family: var(--font-headers);
    font-size: 1.6rem;
    font-weight: 600;
}

.game-main {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
}

/* Alphabet Safari Grid */
.alphabet-board {
    width: 90%;
    max-width: 1000px;
    display: flex;
    flex-direction: column;
    gap: 30px;
    align-items: center;
}

.alphabet-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 12px;
    width: 100%;
}

@media (max-width: 600px) {
    .alphabet-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 8px;
    }
}

.letter-btn {
    font-family: var(--font-headers);
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    color: var(--text-primary);
    height: 64px;
    border-radius: 18px;
    cursor: pointer;
    box-shadow: 0 4px 10px var(--shadow-color);
    transition: var(--transition-bounce);
    display: flex;
    align-items: center;
    justify-content: center;
}

.letter-btn:active, .letter-btn.active {
    transform: scale(0.9) translateY(2px);
    background: var(--accent);
    color: var(--chip-active-text);
    box-shadow: 0 2px 4px var(--shadow-color);
}

.giant-display-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: rgba(255, 255, 255, 0.02);
    pointer-events: none;
    z-index: 1;
    animation: fadeScaleIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.2) forwards;
}

.giant-letter {
    font-family: var(--font-headers);
    font-size: 12rem;
    font-weight: 800;
    line-height: 1;
    color: var(--text-primary);
    text-shadow: 0 8px 30px var(--shadow-color);
}

.giant-illustration {
    font-size: 7rem;
    margin-top: 15px;
    animation: bounceIllustration 3s ease-in-out infinite;
}

.giant-word {
    font-family: var(--font-primary);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-top: 10px;
}

@keyframes fadeScaleIn {
    from { transform: scale(0.85); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

@keyframes bounceIllustration {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(3deg); }
}

/* Magic Numbers Layout */
.numbers-layout {
    width: 90%;
    max-width: 900px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

.numbers-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    width: 100%;
}

@media (max-width: 500px) {
    .numbers-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }
}

.number-btn {
    font-family: var(--font-headers);
    font-size: 2.2rem;
    font-weight: 700;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    color: var(--text-primary);
    height: 76px;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 6px 12px var(--shadow-color);
    transition: var(--transition-bounce);
    display: flex;
    align-items: center;
    justify-content: center;
}

.number-btn:active, .number-btn.active {
    transform: scale(0.9) translateY(2px);
    background: var(--accent);
    color: var(--chip-active-text);
}

/* Body Parts Explorer */
.body-container {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.teddy-wrapper {
    position: relative;
    max-width: 480px;
    width: 90%;
    height: auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

.teddy-svg {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 15px 35px var(--shadow-color));
}

.teddy-part {
    fill: #e5b99a;
    stroke: var(--text-primary);
    stroke-width: 5px;
    stroke-linejoin: round;
    stroke-linecap: round;
    cursor: pointer;
    transform-origin: center;
    transform-box: fill-box;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), fill 0.4s ease, filter 0.4s ease;
}

.teddy-part.face {
    fill: #f4d3ba;
}

.teddy-part.details {
    fill: #ecc3a6;
}

.teddy-part.eye {
    fill: var(--text-primary);
    stroke: none;
}

.teddy-part.nose {
    fill: #e07a5f;
    stroke: none;
}

.teddy-part.cheek {
    fill: #f2a6a6;
    opacity: 0.6;
    stroke: none;
}

.teddy-part.ear-inner {
    fill: #f2a6a6;
    stroke: none;
}

.teddy-part:hover, .teddy-part.active {
    fill: var(--accent);
    filter: brightness(1.05);
}

/* Wiggle animations on active nodes */
.teddy-part[data-part="Ear"].active {
    animation: wiggleEar 0.6s ease-in-out;
}
.teddy-part[data-part="Hands"].active {
    animation: waveHand 0.6s ease-in-out;
}
.teddy-part[data-part="Feet"].active {
    animation: kickFoot 0.6s ease-in-out;
}
.teddy-part[data-part="Head"].active {
    animation: nodHead 0.6s ease-in-out;
}
.teddy-part[data-part="Tummy"].active {
    animation: bounceTummy 0.6s ease-in-out;
}

@keyframes wiggleEar {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-8deg) scale(1.05); }
    75% { transform: rotate(8deg) scale(1.05); }
}

@keyframes waveHand {
    0%, 100% { transform: translate(0,0) rotate(0deg); }
    30% { transform: translate(-4px, -12px) rotate(-10deg); }
    70% { transform: translate(4px, 4px) rotate(10deg); }
}

@keyframes kickFoot {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: translateY(-10px) scale(1.06); }
}

@keyframes nodHead {
    0%, 100% { transform: translate(0, 0); }
    30% { transform: translateY(5px) rotate(-2deg); }
    70% { transform: translateY(-3px) rotate(2deg); }
}

@keyframes bounceTummy {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}

.teddy-part[data-part="Eyes"].active {
    animation: blinkEyes 0.6s ease-in-out;
}
.teddy-part[data-part="Nose"].active {
    animation: twitchNose 0.6s ease-in-out;
}
.teddy-part[data-part="Mouth"].active {
    animation: smileMouth 0.6s ease-in-out;
}

@keyframes blinkEyes {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(0.1); }
}

@keyframes twitchNose {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.25); }
}

@keyframes smileMouth {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.18) rotate(6deg); }
}

.body-bubble-label {
    position: absolute;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    color: var(--text-primary);
    padding: 10px 20px;
    border-radius: 20px;
    font-family: var(--font-headers);
    font-size: 1.1rem;
    font-weight: 700;
    box-shadow: 0 8px 20px var(--shadow-color);
    pointer-events: none;
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.25);
    z-index: 50;
    white-space: nowrap;
}

.body-bubble-label.visible {
    transform: translate(-50%, -50%) scale(1);
}

/* --- Mobile Responsive Optimizations --- */
@media (max-width: 480px) {
    /* Homepage Header & Container */
    body.menu-page {
        padding: 24px 16px 80px 16px;
    }
    .logo-text {
        font-size: 2.1rem;
        letter-spacing: -0.5px;
    }
    .menu-subtitle {
        font-size: 0.95rem;
    }
    .menu-container {
        gap: 20px;
    }
    
    /* Homepage Activity Cards */
    .activity-grid {
        gap: 16px;
    }
    .activity-card {
        padding: 20px 16px;
        gap: 16px;
        border-radius: 20px;
    }
    .card-icon {
        width: 60px;
        height: 60px;
        font-size: 2.4rem;
        border-radius: 16px;
    }
    .card-body h2 {
        font-size: 1.25rem;
    }
    .card-body p {
        font-size: 0.88rem;
        line-height: 1.4;
    }
    .card-tag {
        font-size: 0.62rem;
        top: 10px;
        right: 14px;
        letter-spacing: 0.5px;
    }
    
    /* Parent Zone Floating Control */
    .settings-trigger {
        bottom: 16px;
        right: 16px;
        padding: 8px 14px;
        font-size: 0.8rem;
    }
    
    /* Giant Overlay Displays (Alphabets & Numbers) */
    .giant-letter {
        font-size: 7.5rem;
    }
    .giant-illustration {
        font-size: 5rem;
        margin-top: 10px;
    }
    .giant-word {
        font-size: 1.6rem;
        margin-top: 5px;
    }
    
    /* Body Parts labels */
    .body-bubble-label {
        font-size: 0.95rem;
        padding: 8px 16px;
    }
    
    /* Settings Drawer Panel width */
    .drawer-content {
        padding: 20px;
    }
    .drawer-header h2 {
        font-size: 1.2rem;
    }
    .settings-group {
        margin-bottom: 1.5rem;
        padding-bottom: 1.2rem;
    }
}

/* --- Activity Specific Card Accent Colors --- */
.animals-card:hover { border-color: #f87171; }
.animals-card .card-tag { color: #ef4444; }
.colors-card:hover { border-color: #60a5fa; }
.colors-card .card-tag { color: #3b82f6; }

/* --- Animal Sounds Safari layout --- */
.animals-layout {
    width: 90%;
    max-width: 900px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
    z-index: 2;
}

.animals-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    width: 100%;
}

@media (max-width: 768px) {
    .animals-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .animals-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
}

.animal-btn {
    font-family: var(--font-headers);
    font-size: 3rem;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    height: 120px;
    border-radius: 24px;
    cursor: pointer;
    box-shadow: 0 6px 16px var(--shadow-color), inset 0 2px 4px rgba(255, 255, 255, 0.5);
    transition: var(--transition-bounce);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.animal-btn:hover {
    transform: scale(1.08) translateY(-3px);
    box-shadow: 0 12px 24px var(--shadow-color);
    border-color: var(--accent);
}

.animal-btn:active, .animal-btn.active {
    transform: scale(0.92) translateY(2px);
    background: var(--chip-active-bg) !important;
    box-shadow: inset 0 2px 6px rgba(0,0,0,0.1), 0 2px 4px var(--shadow-color);
}

.animal-btn-label {
    font-family: var(--font-primary);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
}

.animal-btn:active .animal-btn-label, .animal-btn.active .animal-btn-label {
    color: var(--chip-active-text);
}

/* --- Magic Color Mixer layout --- */
.colors-layout {
    width: 90%;
    max-width: 900px;
    height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 2;
}

.color-pads {
    display: flex;
    justify-content: center;
    gap: 20px;
    width: 100%;
    z-index: 10;
}

@media (max-width: 480px) {
    .color-pads {
        gap: 10px;
    }
}

.pad-btn {
    font-family: var(--font-headers);
    font-size: 1.1rem;
    font-weight: 700;
    padding: 14px 28px;
    border-radius: 50px;
    border: 2px solid white;
    cursor: pointer;
    box-shadow: 0 6px 16px var(--shadow-color);
    transition: var(--transition-bounce);
    color: white;
}

@media (max-width: 480px) {
    .pad-btn {
        padding: 10px 18px;
        font-size: 0.95rem;
    }
}

.pad-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 24px var(--shadow-color);
}

.pad-btn:active {
    transform: translateY(1px) scale(0.95);
}

.pad-red { background: linear-gradient(135deg, #f87171 0%, #ef4444 100%); }
.pad-yellow { background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%); color: #78350f; border-color: #fef3c7; }
.pad-blue { background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%); }

.color-instructions {
    position: absolute;
    top: 45%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: none;
    width: 80%;
    z-index: 1;
    opacity: 0.8;
}

.color-instructions h2 {
    font-family: var(--font-headers);
    font-size: 2rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.color-instructions p {
    font-size: 1rem;
    color: var(--text-secondary);
}

@media (max-width: 480px) {
    .color-instructions h2 { font-size: 1.5rem; }
    .color-instructions p { font-size: 0.85rem; }
}